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公开(公告)号：US07265079B2
公开(公告)日：2007-09-04
申请号：US10605687
申请日：2003-10-17
申请人： Dean Willberg , Keith Dismuke
发明人： Dean Willberg , Keith Dismuke
CPC分类号： C09K8/06 , C09K8/03 , C09K8/5045 , C09K8/506 , C09K8/72 , C09K8/74 , Y10S507/923 , Y10S507/933
摘要： A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and particulate solid acid-reactive materials, such as magnesium oxide or calcium carbonate. In the presence of water, the solid acid-precursors hydrolyze and dissolve, generating acids that then dissolve the solid acid-reactive materials. The composition is used in oilfield treatments such as drilling, completion and stimulation where it disappears when it is no longer needed without the use of mechanical means or injection of additional fluids.
摘要翻译： 给出了在井筒和地下地层中自毁失水添加剂和滤饼的组合物和方法。 流体损失添加剂和滤饼由颗粒状固体酸前体如聚乳酸或聚乙醇酸和颗粒状固体酸反应性材料如氧化镁或碳酸钙的混合物形成。 在水的存在下，固体酸前体水解和溶解，产生酸，然后溶解固体酸反应性材料。 该组合物用于油田处理，例如钻井，完井和刺激，当不再需要机械装置或注入另外的流体时，它就不再需要了。
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公开(公告)号：US07482311B2
公开(公告)日：2009-01-27
申请号：US11419410
申请日：2006-05-19
申请人： Dean Willberg , Keith Dismuke
发明人： Dean Willberg , Keith Dismuke
CPC分类号： C09K8/06 , C09K8/03 , C09K8/5045 , C09K8/506 , C09K8/72 , C09K8/74 , Y10S507/923 , Y10S507/933
摘要： A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and particulate solid acid-reactive materials, such as magnesium oxide or calcium carbonate. In the presence of water, the solid acid-precursors hydrolyze and dissolve, generating acids that then dissolve the solid acid-reactive materials. The composition is used in oilfield treatments such as drilling, completion and stimulation where it disappears when it is no longer needed without the use of mechanical means or injection of additional fluids.
摘要翻译： 给出了在井筒和地下地层中自毁失水添加剂和滤饼的组合物和方法。 流体损失添加剂和滤饼由颗粒状固体酸前体如聚乳酸或聚乙醇酸的混合物和颗粒状固体酸反应性材料如氧化镁或碳酸钙形成。 在水的存在下，固体酸前体水解和溶解，产生酸，然后溶解固体酸反应性材料。 该组合物用于油田处理，例如钻井，完井和刺激，当不再需要机械装置或注入另外的流体时，它就不再需要了。
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公开(公告)号：US20060229212A1
公开(公告)日：2006-10-12
申请号：US11419410
申请日：2006-05-19
申请人： Dean Willberg , Keith Dismuke
发明人： Dean Willberg , Keith Dismuke
IPC分类号： C09K8/60
CPC分类号： C09K8/06 , C09K8/03 , C09K8/5045 , C09K8/506 , C09K8/72 , C09K8/74 , Y10S507/923 , Y10S507/933
摘要： A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and particulate solid acid-reactive materials, such as magnesium oxide or calcium carbonate. In the presence of water, the solid acid-precursors hydrolyze and dissolve, generating acids that then dissolve the solid acid-reactive materials. The composition is used in oilfield treatments such as drilling, completion and stimulation where it disappears when it is no longer needed without the use of mechanical means or injection of additional fluids.
摘要翻译： 给出了在井筒和地下地层中自毁失水添加剂和滤饼的组合物和方法。 流体损失添加剂和滤饼由颗粒状固体酸前体如聚乳酸或聚乙醇酸和颗粒状固体酸反应性材料如氧化镁或碳酸钙的混合物形成。 在水的存在下，固体酸前体水解和溶解，产生酸，然后溶解固体酸反应性材料。 该组合物用于油田处理，例如钻井，完井和刺激，当不再需要机械装置或注入另外的流体时，它就不再需要了。
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公开(公告)号：US08839865B2
公开(公告)日：2014-09-23
申请号：US12866507
申请日：2008-02-27
IPC分类号： E21B43/26 , E21B43/267
CPC分类号： E21B43/26 , E21B43/267
摘要： A method of fluid placement in a hydraulic fracture created in a subterranean formation penetrated by a wellbore that comprises the use of one or more reactants that form a low friction layer between the fluids that penetrate the fracture in consecutive treatment stages. Reactants can be added to the fluid that is the carrier or other fluid to be placed in a specific region of the fracture, namely as an upper or lower boundary of the fracture, or added to both the stage that requires placement in a specific section of the fracture and in the stage preceding it, especially the pad and carrier fluids used in consecutive stages.
摘要翻译： 一种在由井筒渗透的地下地层中产生的水力裂缝中的流体放置的方法，其包括使用在连续处理阶段中穿透断裂的流体之间形成低摩擦层的一种或多种反应物。 反应物可以添加到作为载体或其它流体的流体中，所述流体被放置在断裂的特定区域中，即作为裂缝的上部或下部边界，或者添加到需要放置在特定部分 断裂和在其前面的阶段，特别是连续使用的垫和载体流体。
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公开(公告)号：US20120048549A1
公开(公告)日：2012-03-01
申请号：US13147089
申请日：2009-01-30
CPC分类号： E21B33/138 , C09K8/68 , C09K8/70 , C09K8/88 , C09K2208/08 , E21B21/003
摘要： Some embodiments relate to oil and gas production, more specifically, to methods of controlling the condition of suspensions and fluids, small particle delivery and formation rock quality through controlled changes in the physical properties of a hydrolysable polymer contained in a treatment fluid.
摘要翻译： 一些实施方案涉及油和气体的生产，更具体地涉及通过控制在处理流体中包含的可水解聚合物的物理性能的变化来控制悬浮液和流体的状态，小颗粒输送和形成岩石质量的方法。
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6.发明授权Heterogeneous proppant placement in a fracture with removable channelant fill 有权不均匀的支撑剂放置在具有可移除的通道填充物的断裂中公开(公告)号：US08066068B2
公开(公告)日：2011-11-29
申请号：US12507558
申请日：2009-07-22
IPC分类号： E21B43/267
摘要： A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include fibers to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.
摘要翻译： 公开了一种在地下裂缝中布置非均相支撑剂的方法。 该方法包括将包括支撑剂（16）和称为通道（18）的支撑剂间隔填料的井处理流体通过井筒（10）注入到裂缝（20）中，将支撑剂不均匀地放置在多个支撑剂团簇 或通过所述通道（24）间隔开的岛（22），以及去除所述通道填料（24）以形成围绕所述柱（28）的开放通道（26），用于流体从所述地层（14）通过所述断裂 ）朝向井眼（10）。 支撑剂和输送管可以在井内处理液中分离，或在放置在裂缝中时分离。 通道剂可以是可溶解的颗粒，最初在将支撑剂置于断裂中时充当填料，然后溶解以留下支撑剂柱之间的流动通道。 井处理流体可以包括纤维以提供支撑剂的增强和固结，并且还可以或另外地抑制支撑剂在处理流体中的沉降。
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公开(公告)号：US20110108271A1
公开(公告)日：2011-05-12
申请号：US12914463
申请日：2010-10-28
摘要： Recovery of hydrocarbon fluid from low permeability sources enhanced by introduction of a treating fluid is described. The treating fluid may include one or more constituent ingredients designed to cause displacement of hydrocarbon via imbibition. The constituent ingredients may be determined based on estimates of formation wettability. Further, contact angle may be used to determine wettability. Types and concentrations of constituent ingredients such as surfactants may be determined for achieving the enhanced recovery of hydrocarbons. The selection can be based on imbibition testing on material that has been disaggregated from the source formation.
摘要翻译： 描述了通过引入处理液来提高来自低渗透性源的烃流体的回收。 处理流体可以包括一种或多种设计成通过吸入引起烃排出的构成成分。 构成成分可以基于地层润湿性的估计来确定。 此外，可以使用接触角来确定润湿性。 可以确定构成成分如表面活性剂的类型和浓度以实现增强的烃的回收。 选择可以基于对源地址分解的材料的吸收测试。
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公开(公告)号：US20110036583A1
公开(公告)日：2011-02-17
申请号：US12866507
申请日：2008-02-27
CPC分类号： E21B43/26 , E21B43/267
摘要： A method of fluid placement in a hydraulic fracture created in a subterranean formation penetrated by a wellbore that comprises the use of one or more reactants that form a low friction layer between the fluids that penetrate the fracture in consecutive treatment stages. Reactants can be added to the fluid that is the carrier or other fluid to be placed in a specific region of the fracture, namely as an upper or lower boundary of the fracture, or added to both the stage that requires placement in a specific section of the fracture and in the stage preceding it, especially the pad and carrier fluids used in consecutive stages.
摘要翻译： 一种在由井筒渗透的地下地层中产生的水力裂缝中的流体放置的方法，其包括使用在连续处理阶段中穿透断裂的流体之间形成低摩擦层的一种或多种反应物。 反应物可以添加到作为载体或其它流体的流体中，所述流体被放置在断裂的特定区域中，即作为裂缝的上部或下部边界，或者添加到需要放置在特定部分 断裂和在其前面的阶段，特别是连续使用的垫和载体流体。
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公开(公告)号：US06820694B2
公开(公告)日：2004-11-23
申请号：US10192046
申请日：2002-07-10
申请人： Dean Willberg , Michaela Nagl
发明人： Dean Willberg , Michaela Nagl
IPC分类号： E21B3100
CPC分类号： C09K8/882 , C09K8/685 , C09K8/72 , C09K8/887 , Y10S507/903 , Y10S507/922
摘要： The present invention related to a method for fracturing subterranean formations including the steps of (a) providing a water source; (b) adding a crosslinking agent to said water source; (c) adding a polymeric component to said water to create a fracturing fluid; (d) pumping said fracturing fluid into said formation. The fluid may contain an acrylamide-acrylate copolymer and any suitable number of additives. The additives are preferably combined with the water source to form an additive stream, to which the polymer is later added.
摘要翻译： 本发明涉及一种压裂地层的方法，包括以下步骤：（a）提供水源; （b）向所述水源中加入交联剂; （c）向所述水中加入聚合物组分以产生压裂液; （d）将所述压裂流体泵送到所述地层中。 流体可以含有丙烯酰胺 - 丙烯酸酯共聚物和任何合适数量的添加剂。 添加剂优选与水源组合以形成添加剂流，稍后加入聚合物。
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公开(公告)号：US08991494B2
公开(公告)日：2015-03-31
申请号：US13059090
申请日：2008-08-21
申请人： Dean Willberg , Christopher N Fredd , Dina Andreevna Goloshchapova , Sergey Mikhailovich MakaryChev-Mikhailov
发明人： Dean Willberg , Christopher N Fredd , Dina Andreevna Goloshchapova , Sergey Mikhailovich MakaryChev-Mikhailov
IPC分类号： E21B43/267 , C09K8/80 , C09K8/68 , C09K8/88 , E21B43/26
CPC分类号： E21B43/267 , C09K8/68 , C09K8/80 , C09K8/805 , C09K8/88 , C09K2208/08 , C09K2208/28 , E21B43/261
摘要： A method is given for treating a wellbore in a subterranean formation by hydraulic fracturing, slickwater fracturing, gravel packing, and the like, by using plate-like materials as some or all of the proppant or gravel. The plate-like materials are particularly useful in complex fracture systems, for example in shales. They may be used as from about 20 to about 100% of the proppant. Relative to conventional proppants, plate-like proppants demonstrate (a) enhanced crush resistance of the proppant due to better stress distribution among proppant particles, (b) diminished proppant embedment into formation fracture faces due to the greater contact surface area of proppant particles with the formation, (c) better proppant transport due to lower proppant settling rates, (d) deeper penetration into branched and fine fracture networks, and (e) enhanced proppant flowback control. Preferred plate-like proppants are layered rocks and minerals; most preferred is mica.
摘要翻译： 通过使用板状材料作为一些或全部支撑剂或砾石，给出了通过水力压裂，水泥压裂，砾石填充等处理地层中的井眼的方法。 板状材料在复合断裂系统中特别有用，例如在页岩中。 它们可以用作支撑剂的约20至约100％。 相对于常规支撑剂，板状支撑剂表现出（a）由于支撑剂颗粒之间更好的应力分布，支撑剂的抗压缩性得到提高，（b）由于支撑剂颗粒的接触表面积越大，支撑剂嵌入到地层断裂面中， 形成，（c）由于较低的支撑剂沉降速率，更好的支撑剂运输，（d）更深入渗透到分支和细裂缝网络，（e）增强的支撑剂回流控制。 优选的板状支撑剂是分层岩石和矿物; 最喜欢的是云母。
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